Improvement in steam-traps



I. RUPER.

Steam-Traps.

#0,147,286l Patented Feb. 10.1874.

Figi' @A l v in' aflforne AM. Mouarf/06mm@ :am klamm/:s mams NITED SriifinsA PATENT @Ferca JAMES ROIER, OF LAWRENCE, MASSACHUSETTS.

IMPROVEMENT IN STEAM-TRARS.

Specification forming part of Letters Patent No. 147,286, dated February 10,1874; application filed November 26,1873.

To all whom it may concern:

Be it known that I, JAnEs ROPER, of Lawrence, of the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Steam-Traps; and do hereby declare the same to be fully described in the following specification and represented in the accompanying drawings, of which- Figure l is a top view, Fig. 2 a longitudinal section, and Fig. 3 a transverse section, of a steam-trap constructed in accordance with my invention, the object of the apparatus being to discharge from a radiator or vessel containing steam water resulting1 from condensation of steam, andthis without allowing of the escape of steam with the water while being discharged.

In the drawings, A is an induction and C an eduction tube, theybeing equal in diameter and arranged with their axes in one straight line. The bores of the tubes are closed at the inner ends of the two tubes, as shown at c, such ends being connected together. On the said tubes a hollow globe or vessel, G, is arranged, as shown, and provided with stuffingboxes d d, so as `to enable it to turn steamtight on the two tubes. Frein the lower end of the vessel an arm or rod, D, extends and carries an adjustable counterbalance-weight,

E, provided with a screw, c,i`or fixing it to the arm. To the opposite end of the globe or vessel G a faucet, H,is fixed. From that part of the induction-tube A which is within the globe G a pipe, B, is extended, as shown in Figs. 2 and 3, and is curved upward, as represented in the latter of said gures. The pipe .t B opens out of the pipe A, and is open at both ends. Furthermore, in that part of the eduction-pipe C which is within the vessel G there is made transversely a small hole, a, and there is placed in the vessel, as shown, and upon the educt C, a curved valve, F, which is fastened to the vessel G, so as to move with, and be moved by, it in a manner to open and close the hole a.

lf we suppose the pipe A to lead from the place of discharge of the water from the radiator, or other article containing steam, and to be relieved fof the water of condensation, and the apparatusis to be arranged so that while the axes of the tubes A land C shall be horizontal, the axis of the rod D' land the vessel G shall be inclined to the horizon at a proper angle, the apparatus or steam-trap will be in a condition for operation.

By curving the tube B, in manner shown, such tube, besides performing its other function or functions, serves as a stop to determine the extent of movement of the globe G in one direction.

Such 'water as may escape from the radiator will flow into and through the pipes A B, and thence into the vessel G; and, after enough of it may have accumulated in the vessel 'sufliciently to overcome the gravity of the weight E, the vessel G will descend and turn upon two pipes, A C, and at the same time turn the valve F upon the pipe-G, and more or less uncover the opening a., and thereby permit the water to escape through it into` the pipe C, by which such water will be discharged.

The faucet II serves to enable any air that may gather in orbe in the globe G to be discharged therefrom by steam let into the vessel through the pipes A B.

I do not claim a steam-trap made as described aud shown in the United States Patent No. 19,757, which, though analogous to my improved steam-trap, differs therefrom in important particulars, viz., in the application of the valve, and the pipe extended within the balanced vessel. In the trap'shown in the said patent, the pipe is Iixed to and moves with the' vessel; whereas in my trap the curved pipe B does not move with the vessel, but is stationary and extends from the induct-pipe A, and serves not only to convey water into the" vessel, but as a stop to arrest the movement of the said vessel; whereas the pipe in the trap shown in Patent. No. 19,757 is a wastepipe or educt attached to, and moving with, the vessel in which it is placed, and operating in no respect as a stop to arrest the movement of the vessel. Furthermore, in my trap the valve F is separate from the vessel G, and fixed to it by a screw, as shown. This admits of the valve, as it. may wear, being set up to its seat, and also a new valve being substituted, as occasion may require. Vhen the escape-valve is a part of the revolving chamber, or one piece with it, the valve cannot be 2 Maese;

adjusted to allow for its wear. It will, therefore, be seen that my separate valve, fixed by means as set forth, has advantages over a valve in one piece with the rotary chamber.

I therefore claiml. In the steam-trap, as described, the tube B, Xed to the induettuloe A, and extended therefrom into the oounterbalaneed vessel G,

essentially as represented, in combination with such vessehits valve F, and the eduotion-tube U, provided with the opening a, all arranged with such tubes, A and B, substantially as speeied. A

2. The separate valve F, applied to the hole a of the @duction-tube C, and arranged Within and fixed to the Vessel Gr by one or more screws, all being as represented.

' JAMES ROPER.

Vllitliesses:

R. H. EDDY, J. It. SNOW. 

